One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(7,8)(9,10,12,14)(11,13,15,16)(18,23)(19,27)(21,30)(24,32)(25,29)(26,31)(1,2,5,6)(3,7,4,8)(9,11,12,15)(10,13,14,16)(17,18,22,26)(19,28,29,20)(21,31,30,23)(24,25,32,27)(1,3,5,4)(2,7,6,8)(10,14)(13,16)(17,19,21,27,22,29,30,25)(18,24,23,28,26,32,31,20)(1,4,5,3)(2,7,6,8)(17,20,30,32,22,28,21,24)(18,25,31,29,26,27,23,19)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.